Senate Minority Leader Charles SchumerCharles (Chuck) Ellis SchumerMcConnell launches ad touting role in passing coronavirus relief Joe Biden can't lead the charge from his home in Delaware Texas man arrested for allegedly threatening Democrats over coronavirus bill MORE (D-N.Y.) is calling for an "impartial and independent" investigation into Russia's interference in the presidential election following President Trump's firing of FBI Director James Comey.

Schumer outlined Democratic demands in a speech on the Senate floor Wednesday, voicing concern that the "subject" of the FBI's investigation into potential ties between the Trump campaign and Russia may try to "quash" the probe.

"The only thing we are seeking is that the investigations are carried out in an impartial and independent way, that we get all the facts," Schumer said. "All we are seeking is some assurance that the subject of this investigation is not able to influence it or, God forbid, quash it."

Schumer said Democrats agreed to three priorities in a closed-door caucus meeting Wednesday: that Rod Rosenstein, the deputy attorney general, should not be the one to appoint a special prosecutor for an investigation into Russia's meddling in the election; that Comey needs to meet with the Senate; and that Rosenstein and Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsAlabama postpones March 31 GOP Senate runoff Biden has broken all the 'rules' of presidential primaries The Hill's Campaign Report: Defiant Sanders vows to stay in race MORE should meet separately with senators. 
Schumer — crediting Sen. Dianne FeinsteinDianne Emiel FeinsteinEncryption helps America work safely – and that goes for Congress, too Democratic lawmakers demand government stop deporting unaccompanied children DOJ probing stock transactions made by lawmakers ahead of coronavirus crisis: report MORE (Calif.), the top Democrat on the Judiciary Committee — said if a special prosecutor for the FBI's investigation is named, the "highest-serving career civil servant" should pick the individual. 
"Serious doubts have been cast on Mr. Rosenstein's impartiality," he said. "Mr. Rostenstein signed his name to a highly political memo arguing for Director Comey's dismissal." 
Senate GOP leadership has shown no sign that it has reversed course and would support a special counsel for the investigation.
Schumer repeated the demand on Wednesday afternoon, adding that "they should do it soon because the questions are just swirling about." 
Democrats are signaling that they are willing to slow down the Senate in a bid to get leverage in the fight over Comey's firing. They blocked a routine request for committees to meet earlier Wednesday, sparking GOP frustration. 
Sens. Mark WarnerMark Robert WarnerHackers target health care AI amid coronavirus pandemic Hillicon Valley: Coronavirus deal includes funds for mail-in voting | Twitter pulled into fight over virus disinformation | State AGs target price gouging | Apple to donate 10M masks Senator sounds alarm on cyber threats to internet connectivity during coronavirus crisis MORE (D-Va.) and Richard BurrRichard Mauze BurrBefore this pandemic ends, intel agencies should prepare for a world of threats DOJ probing stock transactions made by lawmakers ahead of coronavirus crisis: report GOP presses for swift Ratcliffe confirmation to intel post MORE (R-N.C.) have invited Comey to testify next week as part of a closed-door hearing before the Senate Intelligence Committee. Sen. Ron WydenRonald (Ron) Lee WydenDemocrats press Mnuchin to defend T coronavirus stimulus IG Hillicon Valley: FCC chief proposes 0M telehealth program | Twitter takes down posts promoting anti-malaria drugs for coronavirus| Whole Foods workers plan Tuesday strike Trump says election proposals in coronavirus stimulus bill would hurt Republican chances MORE (D-Ore.), another member of the Intelligence panel, has also publicly called on Comey to testify.
Schumer praised the move, arguing it was the "right thing" to do. 
"We ought to hear from Mr. Comey. At this moment [there is] a profound doubt about the reasons and timing of FBI Director Comey's firing by the president, about the status and progress of the very serious investigation into the Trump campaign and Russia by his agency. We require answers," Schumer said.